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Mostrando ítems 1-10 de 1929
Dually discrete spaces
(ELSEVIER SCIENCE BV, 2008)
A neighbourhood assignment in a space X is a family O = {O-x: x is an element of X} of open subsets of X such that X is an element of O-x for any x is an element of X. A set Y subset of X is a kernel of O if O(Y) = U{O-x: ...
Cohomological field theory in the BV formalism
(Universidade Estadual Paulista (Unesp), 2020-08-07)
O formalismo de Batalin e Vilkovisky (BV) é um dos principais ingredientes de muitas das abordagens que temos para formulações matematicamente precisas de teoria quântica de campos (QFT) perturbativa. Vamos expor este ...
A new method for comparing two Norm Hilbert spaces and their operators
(ELSEVIER SCIENCE BV, 2011)
The paper deals with operators on Norm Hilbert spaces over a Krull valued field K. By using carefully selected equivalent norms (i) the perturbation theory of Fredholm operators (see Ochsenius and Schikhof (2010) [7]) is ...
Integration over families of Lagrangian submanifolds in BV formalism
(Elsevier B.V., 2018-03-01)
Gauge fixing is interpreted in BV formalism as a choice of Lagrangian submanifold in an odd symplectic manifold (the BV phase space). A natural construction defines an integration procedure on families of Lagrangian ...
Dynamics in discrete phase spaces and time interval operators
(Elsevier B.V., 1999-03-01)
The von Neumann-Liouville time evolution equation is represented in a discrete quantum phase space. The mapped Liouville operator and the corresponding Wigner function are explicitly written for the problem of a magnetic ...
Dynamics in discrete phase spaces and time interval operators
(Elsevier B.V., 1999-03-01)
The von Neumann-Liouville time evolution equation is represented in a discrete quantum phase space. The mapped Liouville operator and the corresponding Wigner function are explicitly written for the problem of a magnetic ...
Fock space for fermion-like lattices and the linear Glauber model
(ELSEVIER SCIENCE BV, 2008)
The concept of Fock space representation is developed to deal with stochastic spin lattices written in terms of fermion operators. A density operator is introduced in order to follow in parallel the developments of the ...
Dynamics in discrete phase spaces and time interval operators
(Elsevier B.V., 2014)
Um estudo sobre a minimização de funcionais de expoente variável aplicados à restauração de imagens digitaisAn study over the minimization of functionals of exponent variable applied to the restauration from digital images
(Universidade Federal de UberlândiaBRPrograma de Pós-graduação em MatemáticaCiências Exatas e da TerraUFU, 2016)
A Boolean algebra and a Banach space obtained by push-out iteration
(ELSEVIER SCIENCE BV, 2011)
Under the assumption that c is a regular cardinal, we prove the existence and uniqueness of a Boolean algebra B of size c defined by sharing the main structural properties that P(omega)/fin has under CH and in the N(2)-Cohen ...